Electric connector

Abstract

The utility model provides an electric connector, which comprises an insulating body and a plurality of terminals accommodated in the insulating body, the insulating body is provided with a top wall, a bottom wall and a plug-in groove between the top wall and the bottom wall, and each terminal is provided with a contact arm positioned in the plug-in groove. The contact arm is provided with a first arc-shaped part and a second arc-shaped part which are integrally connected with each other, the first arc-shaped part abuts against the top wall and / or the bottom wall in the vertical direction, and the second arc-shaped part protrudes into the inserting groove to make contact with a butt joint end element in a pressing mode. Compared with the prior art, by optimizing the terminal structure and utilizing the double-section arc-shaped cantilever design of the first arc-shaped part and the second arc-shaped part, the elastic force of the contact arm of the terminal can be increased, the phenomena of deformation and descending in a working state can be reduced or avoided, the requirement of multiple plugging of a product can be met, and the stable contact between the terminal and a butt-joint end element can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to an electrical connector. Background Art

[0002] With the development trend of small and light consumer electronic products such as notebooks, tablets, and mobile phones, the design and manufacturing process of their components are becoming more and more demanding. As the products become thinner and lighter, the internal space becomes very narrow, which requires that the internal layout of the product must be densely packed, and the size of each electronic component is getting smaller and smaller, thinner and lighter. The reliability requirements for process technology and product connections are getting higher and higher. For example, the FPC soft row (flexible board or line row) connector is a commonly used small electrical connector, which is used to plug the FPC soft row (flexible board or line row) to achieve electrical connection. However, since the volume of the FPC soft row connector is usually relatively thin and small, the internal terminals basically adopt a cantilever structure with a straight surface and an inclined surface intersecting, which is used as a lever to clamp the FPC soft row, such as Figure 5 As shown in the figure, the length of this cantilever design can easily cause the terminal cantilever to be insufficient in strength or surrender, and the FPC flexible row is prone to reduced contact stability after repeated plugging and unplugging. Utility Model Content

[0003] The technical problem solved by the utility model is to provide an electrical connector to improve the problem of poor contact stability caused by insufficient or compromised terminal strength in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an electrical connector, comprising an insulating body and a plurality of terminals accommodated in the insulating body, the insulating body being provided with a top wall, a bottom wall and an insertion slot between the top wall and the bottom wall, the terminal being provided with a contact arm located in the insertion slot, the contact arm being provided with a first arc-shaped portion and a second arc-shaped portion integrally connected to each other, the first arc-shaped portion abutting against the top wall and / or the bottom wall in the vertical direction, the second arc-shaped portion protruding into the insertion slot to be crimped into contact with a mating terminal element.

[0005] Furthermore, the first arc-shaped portion and the second arc-shaped portion are integrally connected to form an S-shaped structure, and a convex extending direction of the first arc-shaped portion is opposite to a convex extending direction of the second arc-shaped portion.

[0006] Furthermore, the terminal is also provided with a main body arm extending horizontally, the contact arm integrally extends forward from the front end of the main body arm, and the first arc portion and the second arc portion are respectively located on the upper and lower sides of the main body arm in the vertical direction.

[0007] Furthermore, a front end head is formed at the end of the second arc-shaped portion, and a terminal hole for accommodating the front end head is formed on the top wall and the bottom wall of the insulating body.

[0008] Furthermore, the plurality of terminals are divided into an upper row of terminals and a lower row of terminals, the first arc portion of the upper row of terminals and the first arc portion of the lower row of terminals are symmetrically arranged up and down, the second arc portion of the upper row of terminals and the second arc portion of the lower row of terminals are symmetrically arranged up and down and form a space for clamping the docking terminal element.

[0009] Furthermore, the distance between the first arc-shaped portions of the upper and lower rows of terminals is greater than the distance between the second arc-shaped portions of the upper and lower rows of terminals.

[0010] Furthermore, the electrical connector also includes a metal shell, which covers the surface of the insulating body and is provided with a top cover, a bottom cover, a pair of side covers and a rear end cover. The top cover is provided with a pair of limiting folding pieces extending downward into the plug-in slot, and the end of the limiting folding piece is provided with a snap-on protrusion, which protrudes into the plug-in slot to clamp and limit the docking end element.

[0011] Compared with the prior art, the utility model optimizes the terminal structure and utilizes the double-section arc cantilever design of the first arc portion and the second arc portion to increase the elastic force of the terminal contact arm, reduce or avoid deformation and surrender under working conditions, meet the needs of multiple plugging and unplugging of the product, and ensure stable contact with the mating end components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional view of the front side of the electrical connector of the utility model.

[0013] Figure 2 It is a three-dimensional view of the back side of the electrical connector of the present invention.

[0014] Figure 3 This is a front view of the electrical connector of the present invention.

[0015] Figure 4 This is an internal cross-sectional view of the electrical connector of the present invention.

[0016] Figure 5 It is an internal cross-sectional view of a conventional electrical connector. DETAILED DESCRIPTION

[0017] See also Figures 1 to 4As shown, the utility model provides an electrical connector 100, comprising: an insulating body 11, a plurality of terminals 12 accommodated in the insulating body 11, and a metal shell 13 covering the surface of the insulating body 11, wherein the terminals 12 are fixed in the insulating body 11 for achieving electrical contact with a mating terminal element 200 (such as an FPC flexible row or a circuit board), and the metal shell 13 is used for shielding and protecting, and is conducive to improving the overall strength of the electrical connector 100.

[0018] The insulating body 11 is provided with a top wall 110, a bottom wall 111, a front wall 112, and a rear wall 113. A narrow and long insertion slot 114 is formed between the top wall 110 and the bottom wall 111. The front wall 112 is not covered by the metal shell 13. The insertion slot 114 passes through the front wall 112 and forms a notch 115 on the front wall 112 for inserting the butt-end component 200. A plurality of terminal holes 116 are provided on the top wall 110 and the bottom wall 111. The terminal holes 116 pass through the front wall 112 forwardly to accommodate the front end head 125 of the terminal 12.

[0019] like Figure 4As shown, the plurality of terminals 12 are accommodated in the insulating body 11, which include an upper row of terminals 12a and a lower row of terminals 12b, wherein the upper row of terminals 12a is provided with a main body arm 120, a contact arm 121 extending forward from the main body arm 120, and a mounting foot 122 protruding downward from the insulating body 11, wherein the main body arm 120 extends horizontally and is integrally connected with the contact arm 121 and the mounting foot 122, the main body arm 120 is fixed in the rear end wall 113, the contact arm 121 is provided with a first arc-shaped portion 123 extending forward from the main body arm 120, and a first arc-shaped portion 123 integrally connected with the first arc-shaped portion 123 A second arc-shaped portion 124 connected to the first arc-shaped portion 123 and a front end head portion 125 formed at the end of the second arc-shaped portion 124, the first arc-shaped portion 123 and the second arc-shaped portion 124 are integrally connected and form an S shape, and the two protrude in opposite directions, wherein the first arc-shaped portion 123 abuts upward on the top wall 110, and the second arc-shaped portion 124 protrudes downward into the insertion groove 114 to be crimped into contact with the docking end element, and the front end head portion 125 extends forward into the front end wall 112 and is accommodated in the terminal hole 116, thereby realizing the limiting fixation of the end so that it will not affect the insertion of the docking end element. Similarly, the lower row of terminals 12b are located directly below the upper row of terminals 12a, and their structure is roughly similar to that of the upper row of terminals 12a. They are also provided with a first arc-shaped portion 126, a second arc-shaped portion 127 and a front end head 128, and they are respectively symmetrically arranged with the first arc-shaped portion 123, the second arc-shaped portion 124 and the front end head 125 of the upper row of terminals 12a, and the first arc-shaped portion 126 of the lower row of terminals 12b is downwardly abutted against the bottom wall 111, thereby, a space for clamping the butt-end element is formed between the upper row of terminals 12a and the lower row of terminals 12b, which is used to abut against the upper and lower surfaces of the butt-end element respectively to achieve electrical contact. It should be noted that since the mounting feet 122 of the lower row of terminals 12b need to be located on the inner side of the mounting feet 122 of the upper row of terminals 12a, the length of the main arm 129 of the lower row of terminals 12b will be shorter than the main arm 120 of the upper row of terminals 12a, and the mounting feet 122 of the two rows of terminals are distributed at equal intervals for soldering on a circuit board (not shown).

[0020] like Figure 2As shown, the metal shell 13 is provided with a top cover 130, a bottom cover 131, a pair of side covers 132 and a rear end cover 133, wherein the top cover 130 and the bottom cover 131 are respectively covered on the top wall 110 and the bottom wall 111 of the insulating body 11, the side cover 132 is covered on the two side surfaces of the insulating body 11, and the rear end cover 133 is covered on the rear end wall 113 surface of the insulating body 11, wherein the top cover 130 is provided with a pair of limit flaps 134 bent downward and extending into the plug slot 114 and a pair of The openings 135 are distributed on the rear edge of the metal shell 13, and the openings 135 are distributed on the top wall 110 and the rear end wall 113; the limiting flap 134 extends from the back to the front and extends obliquely downward into the plug-in slot 114 to act on the docking terminal component 200 in the plug-in slot 114, such as an FPC soft row, to limit the FPC soft row. Preferably, a buckle protrusion 137 is provided at the end of the limiting flap 134, which protrudes into the plug-in slot 114 and is located on both sides of the plurality of terminals 12, such as Figure 3 The side cover 132 is provided with a positioning arm 136 protruding inwardly, which is used for locking with the insulating body 11 for positioning.

[0021] In summary, the utility model optimizes the terminal structure and utilizes the double-section arc cantilever design of the first arc portion 123 and the second arc portion 124 to increase the elastic force of the terminal contact arm 121, reduce or avoid deformation and surrender under working conditions, meet the needs of multiple plugging and unplugging of the product, and ensure stable contact with the docking terminal element 200.

[0022] The above is only the best embodiment of the utility model and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the method disclosed above without departing from the scope of the technical solution of the utility model, which all fall within the scope of protection of the claims.

Claims

1. An electrical connector, comprising an insulating body, a plurality of terminals received in the insulating body, the insulating body having a top wall, a bottom wall and a plug-in slot between the top wall and the bottom wall, characterized in that: The terminal is provided with a contact arm located in the insertion slot, and the contact arm is provided with a first arc-shaped portion and a second arc-shaped portion which are integrally connected to each other, the first arc-shaped portion abuts against the top wall and / or the bottom wall in the vertical direction, and the second arc-shaped portion protrudes into the insertion slot to be crimped into contact with a mating terminal element.

2. The electrical connector according to claim 1, wherein: The first arc-shaped portion and the second arc-shaped portion are integrally connected to form an S-shaped structure, and a convex extending direction of the first arc-shaped portion is opposite to a convex extending direction of the second arc-shaped portion.

3. The electrical connector according to claim 2, wherein: The terminal is also provided with a main body arm extending horizontally, the contact arm integrally extends forward from the front end of the main body arm, and the first arc portion and the second arc portion are respectively located on the upper and lower sides of the main body arm in the vertical direction.

4. The electrical connector according to claim 3, wherein: A front end head is formed at the end of the second arc-shaped portion, and a terminal hole for accommodating the front end head is formed on the top wall and the bottom wall of the insulating body.

5. The electrical connector according to claim 4, wherein: The plurality of terminals are divided into an upper row of terminals and a lower row of terminals. The first arc portion of the upper row of terminals is symmetrically arranged with the first arc portion of the lower row of terminals, and the second arc portion of the upper row of terminals is symmetrically arranged with the second arc portion of the lower row of terminals and forms a space for clamping the docking terminal element.

6. The electrical connector according to claim 5, wherein: The distance between the first arc-shaped portions of the upper and lower rows of terminals is greater than the distance between the second arc-shaped portions of the upper and lower rows of terminals.

7. The electrical connector according to claim 6, wherein: The electrical connector also includes a metal shell, which covers the surface of the insulating body and is provided with a top cover, a bottom cover, a pair of side covers and a rear end cover. The top cover is provided with a pair of limiting folding pieces extending downward into the plug-in slot. The end of the limiting folding piece is provided with a snap-on protrusion, and the snap-on protrusion protrudes into the plug-in slot to clamp and limit the docking end element.

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